Microstructural stability and mechanical properties of the system V-Nb-Ta-Ti under helium ion irradiation

8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI:10.56761/efre2022.r4-p-033601

A. Ryskulov, M. Belov, V. Uglov, S. Zlotski, K. Jin, I. A. Ivanov, A. Kozlovskiy, M. Zdorovets, A. Kurakhmedov, A. Sapar, D. Mustafin, Y. V. Bikhert, T. Kuznetsova, V. Lapitskaya, A. Khabarava

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Abstract

The purpose of this work is to study the effect of irradiation with low-energy helium ions with an energy of 40 keV on the structural-phase state of multicomponent solid solutions based on V-Nb-Ta-Ti. This type of irradiation at fluence of 2×1017 He/cm2 make it possible to simulate the effects occurring in a nuclear reactor. since during its operation, a large number of neutrons are released, causing nuclear reactions in the material with the formation of inert gases. As a result of the work carried out, it was found that all alloys of the system belong to equiatomic single-phase solid solutions and show a greater value of deformation of the crystal lattice and stress after irradiation compared with pure vanadium. It has been proposed that increasing the number of elements in the V-Nb-Ta-Ti system reduces the mobility of defects created by irradiation, which leads to the formation of smaller clusters and an increase in microdeformation.

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氦离子辐照下V-Nb-Ta-Ti体系的显微组织稳定性和力学性能

本文的目的是研究能量为40 keV的低能氦离子辐照对基于V-Nb-Ta-Ti的多组分固溶体结构相态的影响。这种浓度为2×1017 He/cm2的辐照可以模拟核反应堆中发生的效应。由于在其运行过程中，会释放出大量的中子，在材料中引起核反应，形成惰性气体。结果表明，该体系的合金均属于等原子单相固溶体，辐照后的晶格变形值和应力值均高于纯钒。有人提出，增加V-Nb-Ta-Ti体系中的元素数量会降低辐射产生的缺陷的迁移率，从而导致更小的簇的形成和微变形的增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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8th International Congress on Energy Fluxes and Radiation Effects

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